Homogeneous and transparent thin nanostructured titania films doped by Y3+were prepared on glass substrates by sol gel processing and dip coating technique. The films were characterized by XRD, XPS and visible absorption spectra. The hydrophilicity of the films was determined by measuring the water contact angles for the films. The effects of Y3+doping, the quantities of Y3+dopant, and the intensity and the time of light illumination on hydrophilicity of the films were studied. The results revealed that t...